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<a href="#define-members">Macros</a> &#124;
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<div class="title">tcp_in.c File Reference</div>  </div>
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<div class="textblock"><code>#include &quot;<a class="el" href="opt_8h.html">lwip/opt.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="tcp__priv_8h.html">lwip/priv/tcp_priv.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="def_8h.html">lwip/def.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="ip__addr_8h.html">lwip/ip_addr.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="netif_8h.html">lwip/netif.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="mem_8h.html">lwip/mem.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="memp_8h.html">lwip/memp.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="inet__chksum_8h.html">lwip/inet_chksum.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="stats_8h.html">lwip/stats.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="ip6_8h.html">lwip/ip6.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="ip6__addr_8h.html">lwip/ip6_addr.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="nd6_8h.html">lwip/nd6.h</a>&quot;</code><br />
<code>#include &lt;string.h&gt;</code><br />
<code>#include &quot;path/to/my/lwip_hooks.h&quot;</code><br />
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Macros</h2></td></tr>
<tr class="memitem:aea174f2c6ca4cb0ad270dd8d0faf0c84"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tcp__in_8c.html#aea174f2c6ca4cb0ad270dd8d0faf0c84">LWIP_TCP_CALC_INITIAL_CWND</a>(mss)&#160;&#160;&#160;((tcpwnd_size_t)LWIP_MIN((4U * (mss)), LWIP_MAX((2U * (mss)), 4380U)))</td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ae70c3c99d9dd6b07f7e11f7ba5eedcb5"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tcp__in_8c.html#ae70c3c99d9dd6b07f7e11f7ba5eedcb5">tcp_input</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *p, struct <a class="el" href="structnetif.html">netif</a> *inp)</td></tr>
<tr class="separator:ae70c3c99d9dd6b07f7e11f7ba5eedcb5"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Transmission Control Protocol, incoming traffic</p>
<p>The input processing functions of the TCP layer.</p>
<p>These functions are generally called in the order (<a class="el" href="group__lwip__nosys.html#ga3c420dab0c6760df099a2d688fa42a26">ip_input()</a> -&gt;) <a class="el" href="tcp__in_8c.html#ae70c3c99d9dd6b07f7e11f7ba5eedcb5">tcp_input()</a> -&gt; * tcp_process() -&gt; tcp_receive() (-&gt; application). </p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a id="aea174f2c6ca4cb0ad270dd8d0faf0c84"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aea174f2c6ca4cb0ad270dd8d0faf0c84">&#9670;&nbsp;</a></span>LWIP_TCP_CALC_INITIAL_CWND</h2>

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          <td class="memname">#define LWIP_TCP_CALC_INITIAL_CWND</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">mss</td><td>)</td>
          <td>&#160;&#160;&#160;((tcpwnd_size_t)LWIP_MIN((4U * (mss)), LWIP_MAX((2U * (mss)), 4380U)))</td>
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<p>Initial CWND calculation as defined RFC 2581 </p>

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<h2 class="groupheader">Function Documentation</h2>
<a id="ae70c3c99d9dd6b07f7e11f7ba5eedcb5"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae70c3c99d9dd6b07f7e11f7ba5eedcb5">&#9670;&nbsp;</a></span>tcp_input()</h2>

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          <td class="memname">void tcp_input </td>
          <td>(</td>
          <td class="paramtype">struct <a class="el" href="structpbuf.html">pbuf</a> *&#160;</td>
          <td class="paramname"><em>p</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">struct <a class="el" href="structnetif.html">netif</a> *&#160;</td>
          <td class="paramname"><em>inp</em>&#160;</td>
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          <td>)</td>
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<p>The initial input processing of TCP. It verifies the TCP header, demultiplexes the segment between the PCBs and passes it on to tcp_process(), which implements the TCP finite state machine. This function is called by the IP layer (in <a class="el" href="group__lwip__nosys.html#ga3c420dab0c6760df099a2d688fa42a26">ip_input()</a>).</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">p</td><td>received TCP segment to process (p-&gt;payload pointing to the TCP header) </td></tr>
    <tr><td class="paramname">inp</td><td>network interface on which this segment was received </td></tr>
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